1 /* $NetBSD: pmap_getport.c,v 1.4 1997/07/21 14:08:31 jtc Exp $ */ 2 3 /* 4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 5 * unrestricted use provided that this legend is included on all tape 6 * media and as a part of the software program in whole or part. Users 7 * may copy or modify Sun RPC without charge, but are not authorized 8 * to license or distribute it to anyone else except as part of a product or 9 * program developed by the user. 10 * 11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 14 * 15 * Sun RPC is provided with no support and without any obligation on the 16 * part of Sun Microsystems, Inc. to assist in its use, correction, 17 * modification or enhancement. 18 * 19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 21 * OR ANY PART THEREOF. 22 * 23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 24 * or profits or other special, indirect and consequential damages, even if 25 * Sun has been advised of the possibility of such damages. 26 * 27 * Sun Microsystems, Inc. 28 * 2550 Garcia Avenue 29 * Mountain View, California 94043 30 */ 31 32 #include <sys/cdefs.h> 33 #if defined(LIBC_SCCS) && !defined(lint) 34 #if 0 35 static char *sccsid = "@(#)pmap_getport.c 1.9 87/08/11 Copyr 1984 Sun Micro"; 36 static char *sccsid = "@(#)pmap_getport.c 2.2 88/08/01 4.0 RPCSRC"; 37 #else 38 __RCSID("$NetBSD: pmap_getport.c,v 1.4 1997/07/21 14:08:31 jtc Exp $"); 39 #endif 40 #endif 41 42 /* 43 * pmap_getport.c 44 * Client interface to pmap rpc service. 45 * 46 * Copyright (C) 1984, Sun Microsystems, Inc. 47 */ 48 49 #include "namespace.h" 50 #include <rpc/rpc.h> 51 #include <rpc/pmap_prot.h> 52 #include <rpc/pmap_clnt.h> 53 #include <sys/socket.h> 54 #include <net/if.h> 55 #include <unistd.h> 56 57 #ifdef __weak_alias 58 __weak_alias(pmap_getport,_pmap_getport); 59 #endif 60 61 static struct timeval timeout = { 5, 0 }; 62 static struct timeval tottimeout = { 60, 0 }; 63 64 /* 65 * Find the mapped port for program,version. 66 * Calls the pmap service remotely to do the lookup. 67 * Returns 0 if no map exists. 68 */ 69 u_short 70 pmap_getport(address, program, version, protocol) 71 struct sockaddr_in *address; 72 u_long program; 73 u_long version; 74 u_int protocol; 75 { 76 u_short port = 0; 77 int socket = -1; 78 register CLIENT *client; 79 struct pmap parms; 80 81 address->sin_port = htons(PMAPPORT); 82 client = clntudp_bufcreate(address, PMAPPROG, 83 PMAPVERS, timeout, &socket, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE); 84 if (client != (CLIENT *)NULL) { 85 parms.pm_prog = program; 86 parms.pm_vers = version; 87 parms.pm_prot = protocol; 88 parms.pm_port = 0; /* not needed or used */ 89 if (CLNT_CALL(client, PMAPPROC_GETPORT, xdr_pmap, &parms, 90 xdr_u_short, &port, tottimeout) != RPC_SUCCESS){ 91 rpc_createerr.cf_stat = RPC_PMAPFAILURE; 92 clnt_geterr(client, &rpc_createerr.cf_error); 93 } else if (port == 0) { 94 rpc_createerr.cf_stat = RPC_PROGNOTREGISTERED; 95 } 96 CLNT_DESTROY(client); 97 } 98 (void)close(socket); 99 address->sin_port = 0; 100 return (port); 101 } 102